Walter (Elyes Gabel) and Paige (Katharine McPhee) will have at least one awkward encounter in “Scorpion” Season 3, episode 14. In the sneak peek released by CBS (via Spoilers Guide) for “The Hole Truth,” Walter expresses his disappointment over the incompetent city workers. When Toby (Eddie Kaye Thomas) asks him what’s wrong, Walter simply gives him…